Which is a safe practice for handling chemicals in a lab investigation? a. dispose of all chemicals down the sink with a lot of water. b. tell the teacher about any chemicals that were spilled in a lab. c. identify chemicals by smelling and tasting them. d. place beakers of chemicals near the edge of the counter.

B is the correct answer. You should ALWAYS tell the teacher about any chemicals that were spilled in a lab.

A is incorrect because it is unwise to dispose of chemicals without a adults permission. C is incorrect because inhaling some chemicals could be very dangerous. D is incorrect because placing a beaker near the edge of a counter could result in it falling off the edge and breaking.

Hope that helps!
-Chris